1 Corinthians 6:16-20

And don’t you realize that if a man joins himself to a prostitute, he becomes one body with her? For the Scriptures say, “The two are united into one.” But the person who is joined to the Lord is one spirit with him. Run from sexual sin! No other sin so clearly affects the body as this one does. For sexual immorality is a sin against your own body. Don’t you realize that your body is the temple of the Holy Spirit, who lives in you and was given to you by God? You do not belong to yourself, for God bought you with a high price. So you must honor God with your body.